ON operand: You can use symbols where you can use fields (p,m,f and p,m). A symbol for p,m,f results in substitution of p,m if symbol,f or symbol,HEX is specified.

TITLE and HEADER operands: You can use symbols where you can use constants ('string'). A symbol for C'string' always results in substitution of 'string'.

HIGHER, LOWER and EQUAL operands: You can use symbols where you can use constants (x, y and v).